Non-Fermi Liquid Transport in AFe<sub>2</sub>As<sub>2</sub> (A=K,Rb,Cs)

ORAL

Abstract

We report milliKelvin heat and charge transport measurements in high-quality single crystals of the heavily hole-doped AFe2As2 (A=K,Rb,Cs) superconductors as a function of magnetic field applied both perpendicular and parallel to the basal plane. The temperature dependence of both electrical and thermal resistivities exhibit non-Fermi-liquid behavior that is dependent on magnetic field. We compare results for all A species to each other, as well as previous results in which the non-Fermi-liquid temperature dependence of the resistivity was taken to indicate a field-tuned quantum critical point at the superconducting upper critical field.

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Presenters

  • Tristin Metz

    • Univ of Maryland-College Park
    • Department of Physics, University of Maryland
    • Center for Nanophysics and Advanced Materials, University of Maryland

Authors

  • Tristin Metz

    • Univ of Maryland-College Park
    • Department of Physics, University of Maryland
    • Center for Nanophysics and Advanced Materials, University of Maryland

  • Makariy Tanatar

    • Iowa State University and Ames Laboratory
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University
    • Ames Laboratory
    • Ames Laboratory and Iowa state University
    • Iowa State University

  • Erik Timmons

    • Iowa State University and Ames Laboratory
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University
    • Ames Laboratory
    • Ames Laboratory U.S. DOE and Department of Physics and Astronomy, Iowa State University

  • Xiangfeng Wang

    • Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland
    • Center for Nanophysics and Advanced Materials, University of Maryland

  • T. A. Lograsso

    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University
    • Ames Laboratory
    • Ames Laboratory, Iowa State University

  • Yong Liu

    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University
    • Ames Laboratory

  • Ruslan Prozorov

    • Ames Lab
    • Iowa State University and Ames Laboratory
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University
    • Ames Laboratory
    • Ames Laboratory and Iowa state University
    • Ames Laboratory U.S. DOE and Department of Physics and Astronomy, Iowa State University

  • Johnpierre Paglione

    • Center for Nanophysics and Advanced Materials , University of Maryland
    • CNAM, Department of Physics, University of Maryland
    • Univ of Maryland-College Park
    • Department of Physics, University of Maryland
    • CNAM, Department of Physics, Univ of Maryland-College Park
    • Univ of Maryland - College Park
    • College Park, MD 20742-4111, Univ of Maryland-College Park
    • Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland
    • Center for Nanophysics and Advanced Materials, University of Maryland
    • University of Maryland, College Park
    • University of Maryland